Consider the food chains below,Aeaten byBeaten byCeaten byD

This food chain describes the flow of energy from one organism to another. In this sequence:

• A is consumed by B.
• B is consumed by C.
• C is consumed by D.

This can be represented as: $\text{A} \rightarrow \text{B} \rightarrow \text{C} \rightarrow \text{D}$, where the arrows indicate the direction of energy transfer.